NEW!!

• 
  Our study on electrical conductivities of the 1D π-stacking column of stable organic neutral radical, trioxotriangulene (TOT) was published in Communication Chemistry, a brandnew journal of general chemistry in Springer Nature. This paper describes that 1D columns of TOT neutral radicals exhibit quite high conductivities (s_RT ~ 10^–3 S cm^–1) as single component organic neutral radicals, and that the conductivities became higher in 1,000–100,000 times in mixed valence salts comprising of the neutral radical and monoanion species of TOT.
  
  Title: Mixed-Valence Salts Based on Carbon-Centered Neutral Radical Crystals
  Murata, T.; Yamada, C.; Furukawa, K.; Morita, Y.
  Communications Chemistry, 2018, 1, 47
  DOI:10.1038/s42004-018-0048-5 (OPEN ACESS)
  
  (2018. 8. 30)
  

• 
  Our investigation on the design and synthesis of stable organic neutral radical, trioxotriangulene was published in Bulletin of the Chemical Society of Japan. This paper is an Award Account of "The Chemical Society of Japan Award for Creative Work for 2015."
  
  Title: Trioxotriangulene: Air- and Thermally Stable Organic Carbon-centered Neutral π-Radical without Steric Protection
  Morita, Y.; Murata, T.; Ueda, A.; Yamada, C.; Kanzaki, Y.; Shiomi, D.; Sato, K.; Takui, T.
  Bulletin of the Chemical Society of Japan, 2018, 91(6), 922–931
  DOI:10.1246/bcsj.20180074 (OPEN ACESS)
  
  (2018. 5. 29)
  

• 
  The study on the near-IR photo absorptions of one-dimensional "π-stacked radical polymers" based on trioxotriangulene neutral radicals was published in npj Quantum Materials. This study was performed with the collaboration with Prof. Nakai and his research group (Waseda University).
  
  
  
  Title: Near-infrared absorption of π-stacking columns composed of trioxotriangulene neutral radicals
  Ikabata, Y.; Wang, Q.; Yoshikawa, T.; Ueda, A.; Murata, T.; Kariyazono, K.; Moriguchi, M.; Okamoto, H.; Morita, Y.; Nakai, H.
  npj Quantum Materials, 2017, 2, No. 27
  DOI:10.1038/s41535-017-0033-8 (OPEN ACESS)
  
  (2017.6.9)

• 
  A new paper about the quantum chemical calculation about the magnetic and transport properties of 1-D π-stacked assemblies of trioxotriangulene derivatives was published in BCSJ. This work was performed with the collaboration with Prof. Kawakami, Prof. Okumura, and Prof. Yamaguchi (Osaka University).
  
  Title: Theoretical Studies on the Magnetic and Conductive Properties of Crystals Containing Open-Shell Trioxotriangulene Radicals
  Bulletin of the Chemical Society of Japan, 2016, 89(3), 315–333
  
  DOI:10.1246/bcsj.20150322
  
  (2016. 3. 18)
  
  

• 
  The study on assembled metal complexes based on 1,3-diazaphenalenyl-type ligand was published as a communication in J. Am. Chem. Soc. This study was performed with the collaboration with Prof. Kawano (POSTECH/Tokyo Institute of Technology) and Prof. Yakiyama (POSTECH/Osaka University).
  
  Title: Selective Formation of Conductive Network by Radical-Induced Oxidation
  Koo, J.-Y.; Yakiyama, Y.; Lee, G.-R.; Lee, J.; Choi, H. C.; Morita, Y.; Kawano, M., J. Am. Chem. Soc. 2016, 138(6), 1776–1779
  DOI: 10.1021/jacs.5b12355
  
  (2016.2.18)

• 
  Our study on the tetrathiafulvalene-linked 6-oxophenalenoxyl neutral radical has appeared as a Cover Picture.
  The continuous color change of the solution of the neutral radical occurring with the temperature-dependent ΔE shift is expressed as an autumn leaf color.
  
  Chem. Asian J. 2014, 9, 500-505, DOI: 10.1002/asia.201301188
  (2014.1.27)

• 
  Our recent study on “Spin-center Transfer of Tetrathiafulvalene-linked 6-Oxophenalenoxyl Neutral Radical” published in Chem. Asian J. as Full paper (S. Nishida, K. Fukui, Y. Morita Chem. Asian J. 2014, 9, 500-505, DOI: 10.1002/asia.201301188)has been featured as Magazine Articles inChemistryViews
  (←http://www.chemistryviews.org/details/ezine/5567921/Radical_Transfer.html)
  by the Editor of Chem. Asian J. (2013.11.27)

Hydrogen-Bonding Effect on Spin-Center Transfer of Tetrathiafulvalene-Linked 6-Oxophenalenoxyl Evaluated Using Temperature-Dependent
Cyclic Voltammetry and Theoretical Calculations
Nishida, S.; Fukui, K.; Morita, Y.

Chem. Asian. J. 2014, 9, 500-505 (Web site is here）


The article on the hydrogen-bonding effect on spin-center transfer of tetrathiafulvalene (TTF)-substituted 6-oxophenalenoxyl neutral radicalhas been published as Full paper in Chem. Asian J.
We have successfully observed a change in the redox potentials involved in the spin-center transfer of the neutral radical with decrease in temperature using a conventional low-temperature electrochemical cell we designed and fabricated.
Furthermore, theoretical calculations indicated that hydrogen-bonding interaction by 2,2,2-trifluoroethanol as solvent promotes the spin-center transfer.
(2013.11.6) Click the Picture for enlargement.

   frontispiece !!




Control of Exchange Interactions in π Dimers of 6-Oxophenalenoxyl Neutral π Radicals: Spin-Density Distributions and Multicentered–Two-Electron Bonding Governed by Topological Symmetry and Substitution at the 8-Position

Nishida, S.; Kawai, J.; Moriguchi, M.; Ohba, T.; Haneda, N.; Fukui, K.; Fuyuhiro, A.; Shiomi, D.; Sato, K.; Takui, T.; Nakasuji, K.; Morita, Y.


Chem. Eur. J. 2013 , 19, 11904-11915


The first article on the crystal structures and the solid-state properties of 6-oxophenalenoxyl derivative,stable neutral radicals we designed and synthesized, has been published as Full paper in Chem. Eur. J. These radicals form π dimers in the crystalline state similar to tri-tert-butylphenalenyl radical, while the intradimer exchange interactions are very small due to change in topological symmetry of spin density distribution and substituents on the 8-position.

Click the Picture for enlargement.










Associate Professor morita has received  2013 Osaka University Presidential Awards for Achievement in Research.

Click the Left Picture for enlargement.

(2013.8.6)











Professor Martin Lemaire has joined our research group as  the Invitation Fellowship for Research in Japan (Short-Term).


(2013.8.5)











  frontispiece 


Coming soon... 

 Accepted Articles





(2013.7.22)







Selected Papers !!



Syntheses, Redox Properties, Self-Assembled Structures and Charge-Transfer Complexes of 

Imidazole- and Benzimidazole-Annelated Tetrathiafulvalene Derivatives

Murata, T.; Yamamoto, Y.; Yakiyama, Y.; Nakasuji, K.; Morita, Y.

Bull. Chem. Soc. Jpn. 2013 , 86, 927-939 Open Access Article

(2013.7.22) 










Pulsed electron spin nutation spectroscopy for weakly exchange-coupled multi-spin molecular systems with nuclear hyperfine couplings: A general approach to bi- and tri-radicals and determination of their spin dipolar and exchange interactions

Ayabe, K.; Sato, K.; Nakazawa, S.; Nishida, S.; Sugisaki, K.; Ise, T.; Morita, Y.; Toyota, K.; Shiomi, D.; Kitagawa, M.; Suzuki, S.; Okada, K.; Takui, T.

Mol. Phys.  2013,111,2767-2787

(2013.6.24) 










A Dicyanomethylene-Substituted Triangulene: Effects of Molecular-Symmetry Reduction and Electron-Accepting Substituents on a Fused Polycyclic Neutral π-Radical System

Ueda, A.; Wasa, H.; Nishida, S.; Kanzaki, Y.; Sato, K.; Takui, T.; Morita, Y.

Chem. Asian J.  2013 , 8, 2057-2063

(2013.6.12) 









Our Paper on　"Air-Stable Organic Neutral Radicals"　was recently published by 

　"Chemistry Today"　from　Tokyo Kagaku Dohjin.

"Chemistry Today" Web Site is Here

(2013.5.17) 










Syntheses, Redox Properties, Self-Assembled Structures and Charge-Transfer Complexes of 

Imidazole- and Benzimidazole-Annelated Tetrathiafulvalene Derivatives

Murata, T.; Yamamoto, Y.; Yakiyama, Y.; Nakasuji, K.; Morita, Y.

Bull. Chem. Soc. Jpn. 2013 , 86, 927-939

(2013.5.10) 







Hot Paper !!



Hexamethoxyphenalenyl as a Possible Quantum Spin Simulator: An Electronically Stabilized Neutral

π-Radical with Novel Quantum Coherence Owing to Extremely High Nuclear Spin Degeneracy

Ueda, A.; Suzuki, S.; Yoshida, K.; Fukui, K.; Sato, K.; Takui, T.; Nakasuji, K.; Morita, Y.


Angew. Chem. Int. Ed.2013, 52, 4795-4799  (DOI: 10.1002/anie.201301435)　　（2013.4.18)

Angew. Chem. Int. Ed. Upcoming Hot Papers !!












Organic Rechargeable Batteries with Tailored Voltage and Cycle Performance

Nishida, S.; Yamamoto, Y.; Takui, T.; Morita, Y.


ChemSusChem  2013 , 6, 794-797 (DOI: 10.1002/cssc.201300010)　(2013.3.18)











Our paper on “Novel Applications of ESR/EPR: Quantum Computing/Quantum Information Processing” 

was recently published as one chapter in「EPR of Free Radicals in Solids II」from Springer -Verlag, showing our 

new challenge for realization of quantum computer based on chemistry!! 

click here!　(2013.2.8)












Cooperation of Hydrogen-Bond and Charge-Transfer Interactions in Molecular Complexes in the Solid State

Morita, Y.; Murata, T.; Nakasuji, K.

Bull. Chem. Soc. Jpn  2013, 86, 183-197(Accounts)


free download here!　(2013.1.31)














“Angewandte Author Profiles” 

　　click here!　　(2012.12.21) 












An Extremely Redox-Active Air-Stable Neutral π Radical: Dicyanomethylene-Substituted Triangulene with a Threefold Symmetry

Ueda, A.; Wasa, H.; Nishida, S.; Kanzaki, Y.; Sato, K.; Shiomi, D.; Takui, T.; Morita, Y.


Chem. Eur. J. 2012, 18, 16272-16276

(2012.11.24)









Nucleobase-Functionalized 1,6-Dithiapyrene-Type Electron-Donors: Supramolecular Assemblies by Complementary Hydrogen-Bonds and π‐Stacks

Murata, T.; Miyazaki, E.; Nakasuji, K.; Morita, Y.


Cryst. Growth Des. 2012, 12, 5815-5822

(2012.11.5)











Crystal surface mediated structure transformation of a kinetic framework composed of multi-interactive ligand TPHAP and Co(Ⅱ)

Yakiyama, Y.; Ueda, A.; Morita, Y.; Kawano, M.


Chem. Commun. 2012,  48, 10651-10653

(2012.9.22)









Tetrathiafulvalene-Fused Porphyrins via Quinoxaline Linkers: Symmetric and Asymmetric Donor-Acceptor Systems

Jia, H.; Schmid, B.; Liu, S.; Jaggi, M.; Monbaron, P.; Bhosale, S. V.; Rivadehi, S.; Langford, S. J.; Sanguinet, L.; Levillain, E.; El-Khouly, M. E.; Morita, Y.; Fukuzumi, S.; Decurtins, S.


Chem. Phys. Chem. 2012, 13, 3370-3382

(2012.9.17)












Development of Organic Conductors with Self-Assembled Architectures of Biomolecules: Synthesis and Crystal Structures of Nucleobase-Functionalized Tetrathiafulvalene Derivatives

Murata, T.; Miyazaki, E.; Maki, S.; Umemoto, Y.; Ohmoto, M.; Nakasuji, K.; Morita, Y.


Bull. Chem. Soc. Jpn. 2012, 85, 995-1006

(2012.9.8)











A Synthetic Two-Spin Quantum Bit: g-Engineered Exchange-Coupled Biradical Designed for Controlled-NOT Gate Operations

Nakazawa, S.; Nishida, S.; Ise, T.; Yoshino, T.; Mori, N.; Rahimi, R.; Sato, K.; Morita, Y.; Toyota, K.; Shiomi, D.; Kitagawa, M.; Hara, H.; Carl, P.; Höfer, P.; Takui, T


Angew. Chem., Int. Ed. 2012, 51, 9860-9864

(2012.9.1)










Modulation of charge-transfer complexes assisted by complementary hydrogen bonds of nucleobases: TCNQ complexes of a uracil-substituted EDO-TTF

Murata, T.; Umemoto, Y.; Miyazaki, E.; Nakasuji, K.; Morita, Y.


CrystEngComm. 2012, 14, 6881-6887
 
(2012.8.17)














Tetrathiafulvalene-Type Electron Donors Bearing Biimidazole Moieties: Multifunctional Units with Hydrogen Bonding Abilities

Murata, T.; Nakasuji, K.; Morita, Y.


Eur. J. Org. Chem. 2012, 4123-4129

(2012.6.24)












"Chiral Stable Phenalenyl Radical: Synthesis, Electronic-spin Structure, and Optical Properties of [4]Helicene-Structured Diazaphenalenyl"
 
 Ueda, A.; Wasa, H.; Suzuki, S.; Okada, K.; Sato, K.; Takui, T.; Morita, Y.
 
Angew. Chem., Int. Ed. 2012, ,51, 6691-6695

(2012.5.26)












「Organic Batteries, Better Batteries」

The Japan Journal 2012, 8, 28-29

English Version is Here

The Japan Journal HP  

http://www.japanjournal.jp/

(2012.2.16)








Nature Materials！！









Nature Materials 


Organic tailored batteries materials using stable open-shell molecules with degenerate frontier orbitals

Morita, Y.; Nishida, S.; Murata, T.; Moriguchi, M.; Ueda, A.; Satoh, M.; Arifuku, K.; Sato, K.; Takui, T.

Nature Materials 2011, 10, 947-951


(2011.10.17)




press 発表の資料はこちら、
大阪大学理学部HPからはこちらでご覧になれます。
















"Air-Stable Open-shell Organic Molecules: Syntheses of Electronic-Spin Delocalized Neutral Radicals and Dynamic Electronic-Spin Physical Properties"

J.Synth.Org.Chem.Jpn. 2012, 70, 50–59

(2011.9.14)












"Redox-Active Tubular Frameworks with TTF: Self-Assemblies by Complementary Hydrogen-Bonds and π-Stacks of TTF-Phenyluracil"

（村田剛志・槙優・大元誠・宮碕栄吾・梅本欽一・中筋一弘・森田靖）

CrystEngComm. 2011, 13, 6880–6884

(2011.8.18)










Heteroatom Functionalization of Phenalenyl: Synthesis, Structures, and Properties of Hexa-substituted Phenalenyliums

Ueda, A.; Yoshida, K.; Suzuki, S.; Fukui, K.; Nakasuji, K.; Morita, Y.


J. Phys. Org. Chem. 2011, 24, 952–959

(2011.7.25)










Solution-Stable Triple-Helicates of Quaterimidazole: Three-Dimensional Crystal Structures and Optical Resolution by Chiral-Column HPLC

Yumi Yakiyama, Tsuyoshi Murata, Tomoaki Ise, Daisuke Shiomi, Kazunobu Sato, Takeji Takui, Kazuhiro Nakasuji and Yasushi Morita


Eur. J. Inorg. Chem. 2011, 3438-3445
   
(2011.5.14)










Proton-transfer salts between an EDT-TTF derivative having imidazole-ring and anilic acids: 

Multi-dimensional networks by acid-base hydrogen-bonds, π-stacks and chalcogen atom interactions


村田剛志、焼山佑美、中筋一弘、森田 靖


CrystEngComm. 2011, 13, 3689-3691

(2011.4.22)











"Electronic Stabilization Effect of Spin-Delocalized Neutral Radical: Synthesis of An 8-Cyano-6-oxophenalenoxyl Derivative and Quantitative Evaluation of the Electronic-Spin Structure in terms of Resonance Structures"

Nishida, Shinsuke; Kariyazono, Kazuki; Yamanaka Azusa; Fukui, Kozo; Sato, Kazunobu; Takui, Takeji; Nakasuji, Kazuhiro; Morita, Yasushi

Chem. Asian J. 2011, 6, 1188-1196

(2011.3.2)









"Synthetic organic spin chemistry for structurally well-defined open-shell graphene fragments"

Morita, Yasushi; Suzuki, Shuichi; Sato, Kazunobu; Takui, Takeji


Nature Chemistry 2011, 3, 197-204

(2011.2.23)









"ESR and 1H-,19F-ENDOR/TRIPLE Study of Fluorinated Diphenylnitroxides as Synthetic Bus Spin-Qubit Radicals with Client Qubits in Solution"

Yoshino, Tomohiro; Nishida, Shinsuke; Sato, Kazunobu; Nakazawa, Shigeaki; Rahimi, Robabeh; Toyota, Kazuo; Shiomi, Daisuke; Morita, Yasushi; Kitagawa, Masahiro; Takui, Takeji

J.Phys.Chem.Lett. 2011, 2, 449-453

(2011.2.12)










"Triple-Stranded Metallo-Helicates Addressable as Lloyd’s Electron Spin Qubits"

Yasushi Morita, Yumi Yakiyama, Shigeaki Nakazawa, Tsuyoshi Murata, Tomoaki Ise, Daisuke Hashizume, Daisuke Shiomi, Kazunobu Sato, Masahiro Kitagawa, Kazuhiro Nakasuji and Takeji Takui

J. Am. Chem. Soc. 2010, 132, 6944-6946











"Air-stable Curved π-Radical Based on Corannulene: Dynamic Electronic-spin Structure Induced by Temperature-dependent Conformational Changes"

(上田　顕・小笠原華菜子・西田辰介・福井晃三・佐藤和信・工位武治・中筋一弘・森田　靖)


Aust. J. Chem. 2010, 63, 1627-1633






  

    

      
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